For most Americans, fall is synonymous with pumpkins. Some use the fruit to make delicious soups and bread, others to carve out scary jack-o-lanterns. Then there are those that spend months nurturing massive gourds for pumpkin weigh-off contests. Though there are numerous competitions nationwide, the most impressive pumpkins usually end up at the Safeway World Championship Pumpkin Weigh-Off in Half Moon Bay, CA.